Trolley wheel or sheave.



A, E. LINBBERG.

TROLLEY WHEEL OR` SHBAVE.

APPLICATION FILED PEB.26.1913.

1,077,147. Patented 0011.28, 1913.

WIT/VESSES:

.Elbe-TZ msm@ Eimer? .'i ein .A wenn@ Speeeaiion of Letters Patent.

FFQE.

KES-BARRE, PENNSYLVANIA.

Patented Get. 2%, 93.

Appticationnled .February F56. 1913. Serial No. 750,930.

Be it known that I, Alan-iur U iste; laxa- BERG, a citizen of *he United rwtates. resid`4 ing at lvYillics-Barre. in the coun f of Lu- Zerne and State ot' 'llennsvvliy hare invented certain new and ustmil l'inprovements in Trolle',Y "zif'licels or ilxez vos. oil: which the followingl is a speciiication.

lily invention relates to4 certain new and useful .improvements in the construction ot trolley wheels, sheaves` pullei` wheels or the like, and in its een fric nature the invention has for its object to provide an iinproved Wheel or sheave of such construction that the wire or cable passing over the saine will be maintained in operative relation or Contact to the wheel regardless ot' lateral vibrations or movements that nia'v occur in the Wheel or wire themselves.

Thilo my invention is of general application and I Wish it understood thatl it may be employed wherever found desirable, I have nevertheless illust-rated the invention as pai ticularly adapted for use a.' a trolley ivl'ieel.

In the illustrative embodiment ot the invention disclosed in the accompanying drawing, Figure l is a perspective. view' of the invention. Fie'. 2 is a face view ot' the same. Fig'. 3 is a vertical section ot the Wheel. Fig'. 4 is a similar view illustratingT the manner in which the wheel and wire are retained in operative Contact. Fig. 5 is a View similar to Fig. 2 of a modified view showing 'the lugs opposed instead of stag'- gered. Fig. 6 is -a vertical. section ot the parts shown in Fig. 5.

In the drawing, l represents the Wheel which is provided with the usual hub 2 of any approved construction, that is bored at 3 to receive the spindle 4 on which the Wheel is mounted.

The inner surfaces of the Wheel, at the sides 6 of the Igroove 5, are formed with undulated portions to provide alternately arranged lugs 7, and convexities 8, the number of which is so designed as to provide three lugs af. 7/ and continuously above the plane ot the Wire 9, whereby should the wire 9 work to one side or thc other of the Wheel. as indicated in full lines in Figs. Q and the lugs 7 will act as cams, as it were, or inclines to ice-center the Wire 9 in the Wheel ,groolve 5 by effecting" a relative inovement between the Wire and the Wheel.

Then the Wire 9 is relatively centered in the groove 5 and in the proper relative posimore relatively laterali) so that the .vire 5)' nieves relatively to one side ot' the central plane ll ot' the wheel7 see Figs. 2 and t, the ings or 'projections 7 Awill come into operation to apply the required pressure or triction against the wire to cause a relative motion to occur between the wire and the wheel in an opposite direction to restore. the parts to their normal positions indicated in Fig.

Y'lionerous variations in the design7 forni, or curvature of the lugs T may be employed to moet the exigencies of the particulzzr case.7 and lf do not wish to be limited to the precise design disclosed in the drawing, the. Lrist oi. the invention residing,T in the provision of a series ot projections troni the opposing sides ot' the wheel flanges at the grooveF so a1".-ingcd that wheni-he wire rides to one ,eine or the other, such projections will operate to restore tho wire to the luid-plane ot the wheel.

From the foregoingdcscripthai.l taken in Connection with the accinnpanying drawing,

lit is thought the complete construction, op-

eration and advantages ot' the invention n'ill be apparent to those skilled in the art to which the saine relates.

lVhat l claim is l. ln a Wheel ot the character stated, a 1" body having an annular `groove and side flanges, and a setot promotions on `each opposing' face of .Caid side flanges at the sides of the groove.v thebpposing edges ot said propri-,tions being spaced apart a sulticlent distance to permit. entry of the Wire. into the lgroove.

2. wheel of the character stated coin-- prising a body portion having a spindle receiving; bore, and including a peripheral groove to forni side ilanges, a set of alternately arranged projections and recesses on nach side tlange Within the groove said projections and recesses merging With each other to torni undulated side Walls for said ertmve. the adjacent edges .ot said projections being located above the plane of the Wire and spaced apart a sufficient distance to permit entry of the wire into the groove.

3. A wheel of' the character stated eo1n prieing a body having a huh portion to re eeive a 'spindlej and having a peripheral Lrg'roove with side flanges, a set of projections projecting into `Suid groove from said side 'langee at tli. ;-Ij eriphery thereof, the pro- :jeoiione on oneslde Hnge being spaced from oeive a spindle, and having a peripheral groove with side flanges, a set of projections projecting into seid groove from said side flanges at the periphery thereof, the projections on one side fiange being spaced from those on the other side flange e sufficient distance to permit entry of the Wire into the groove, the projections on one flange being staggered with relation to those on the other ilange.

ALBERT Witnesses EUGENE K. FRY, Cir-IAS. H. KLINGES.

ELLISON LNEBERG. 

